DPM 2010 SharePoint 2007 and SQL 2005 long time Recovery point

Hi, i have two farms with two dedicated DPM for each of them

• SP 2010 with SQL 2008 R2
• SP 2007 with SQL 2005

While recovery point is running for 2010 multiple databases are taken simultaneously while in 2007 only one database at time in sequential order which leads in large time for recovery point of farm.

any recommendations or modification known for this behavior

Thanks

Mina